Dear Mr JOHNPIA2
If you can still visit the equipment, you should find on the plates the vessel is made of, the ISPESL’s symbol printed on.
It is a small (it is about 10 mm diameter overall) star (5 corners) with inside the letters ISPESL (one for each corner). On the pipes or longitudinal...
Dear Mr JOHNPIA2
surfing the forum I got your msg, and for curiosity I would like to ask you if you get any answer from the ISPESL of Venice as suggested from Mr Prex.
Thanks lot.